What Size Downrod For Vaulted Ceiling. Larger rooms require fans with larger diameters, while smaller spaces require fans with smaller. Web ten years ago, ceiling fans were mostly available in three sizes:
Web ten years ago, ceiling fans were mostly available in three sizes: A 20 feet ceiling would require a professional to make a more precise analysis of the room. Large rooms up to 400. Larger rooms may need more than one fan. 42 inches, 48 inches, and 52 inches. Ceiling height (in feet) minus 9' (includes the fan height) = downrod length. The bigger the fan and/or the steeper the slope, the longer the downrod. For example, if your ceiling is. Larger rooms require fans with larger diameters, while smaller spaces require fans with smaller. Web energy star® makes the following recommendations for ceiling fan diameter:
A 20 feet ceiling would require a professional to make a more precise analysis of the room. Web to calculate the downrod length you need, use this simple calculation: Ceiling height (in feet) minus 9' (includes the fan height) = downrod length. Web energy star® makes the following recommendations for ceiling fan diameter: Larger rooms may need more than one fan. Web ten years ago, ceiling fans were mostly available in three sizes: A 20 feet ceiling would require a professional to make a more precise analysis of the room. Web for safe installation, however, the downrod will need to be at least 12 inches long. Large rooms up to 400. Larger rooms require fans with larger diameters, while smaller spaces require fans with smaller. The bigger the fan and/or the steeper the slope, the longer the downrod.